Outboard motor

Details Outboard motor Outboard motor

B - Operations, Transporting

63

H

B63H 20/24 (2006.01) F01N 13/12 (2010.01) F02D 29/02 (2006.01) F02M 9/08 (2006.01)

Patent

CA 2740721

An outboard motor in which exhaust of an engine is emitted into water via an exhaust passage. The outboard motor comprises a throttle valve connected to an air intake port of the engine via an air intake manifold, a control motor for driving the throttle valve to open and close, and a controller for controlling the control motor. The controller controls the control motor such that the throttle valve fully closes when a determination is made that reverse rotation is occurring in the engine. The exhaust passage is communicated with the air intake manifold via a communication passage. A communication valve which opens only when reverse rotation is occurring in the engine is located at a portion where the communication passage and the air intake manifold connect.

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